Here is the full English translation of your Persian conference text. The tone is kept friendly and professional.

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**Hello everyone! Good to see you.**

All of us back in school, when we got to the topic of "Prime and Composite numbers," felt like we were facing a big mystery. You had to sit down with paper and a pen and test the numbers one by one. For example, you'd ask: "Is this number divisible by 3? What about 7?" You'd test so much that either your paper would tear or the break bell would ring.

**But today, the method has changed.**

I want to introduce you to an amazing tool; an online assistant that solves the whole puzzle with just one click.

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**1. The Guide Section (Look at the first image):**

If you've forgotten the definition of "prime" or "composite," it doesn't matter at all. This tool has an excellent guide section at the bottom of the page. It tells you in the simplest language that a "prime number" is a number that is only divisible by 1 and itself (like 13), and a "composite number" is a number that has other divisors besides 1 and itself (like 10).

**2. The Operational Section (Look at the second image):**

When you type a number into the white box and hit the purple "Check" button, everything happens fast. If your number is "composite" (like the number entered in this image), it warns you with a red X and shows you a complete list of all its divisors. See how precise and fast it is!

**3. The Final Result (Look at the third image):**

And if your number is "prime" (like the number entered in this image), it gives you a big green checkmark and an encouraging message: "Congratulations, this number is a prime number!"

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**Summary:**

You no longer need to sit there and fuss around with a calculator and paper. Save this tool somewhere in your browser. Try it just once, and you'll enjoy it. I'm sure that after using this, you won't be able to go back to the old way.

**Thank you for your attention.**